Patent 7116481 was granted and assigned to Ericsson on October, 2006 by the United States Patent and Trademark Office.
A tunable optical resonator for use as a tunable laser or optical filter comprising a cavity in which the cavity is delimited by a reflection grating and a reflector in which the reflection grating is fixed to a flexible support, the resonator also comprising means for flexing the flexible support for causing the grating to mimic rotation about a selected point. A micro-mechanical tunable resonator as above providing mode-hop free tuning.